Meaning of “tenacious” in the English Dictionary

"tenacious" in British English

See all translations

tenaciousadjective

uk /təˈneɪ.ʃəs/ us /təˈneɪ.ʃəs/

(Definition of “tenacious” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"tenacious" in American English

See all translations

tenaciousadjective [ not gradable ]

us /təˈneɪ·ʃəs/

unwilling to accept defeat or stop doing or having something:

Seles is a tenacious opponent – she never gives in.
tenacity
noun [ U ] us /təˈnæs·ɪ·t̬i/

They cling with admirable tenacity to their traditions.

(Definition of “tenacious” from the Cambridge Academic Content Dictionary © Cambridge University Press)